National Aperture, Inc.

P: 800-360-4598 ~  F: 603-893-7857

Select by Part No. Prefix:

Custom Shapes & Patterns

Custom Patterns forOptical, Laser, Astronomy
and other Scientific Applications

Typical Materials

  • Stainless Steel
  • Brass
  • Copper
  • Platinum


  • Gold
  • Nickel
  • Tantalum
  • Tungsten


  • Molybdenum
  • Titanium
  • and more...

Suggested materials (unless othwerwise required):

For best quality and cost:
300 series stainless steel 0.001 inch thick or under.

Gas, Liquid, Material FLOW Oriented:

Leak test grade;

The emphasis normally on roundness is replaced by orifice area specification to improve cost effectiveness. To optimize quality, materials should be kept as thin as allowable. 300 stainless steel is suggested unless otherwise required.

Metered Flow;

Same as Leak Test above.

Dies (wire polymer), Jets (liquid or gas);

Up to 0.010 inch (0.254mm) diameter x 0.010 (0.0245mm) deep

X-ray shielding, selective:

Typical materials are tantalum, tungsten and platinum.

Special Micro Patterns:

...........per quote.

Round, square, rectangular, slit, arc, hexagon, octagon, annular, etc. and combinations of patterns or arrays.

Four-Bar Patterns:

Standards are: 300 stainless steel 0.0005 in. x 0.375 in., or copper 0.001 in.


Up to 5mm square; not including applicable air slit options

...........per quote.

Up to 0.750 in., any workable material


SEM photos:


per feature.


per additional shot/angle.

(Not to be used for calibration or measurement.)

Shapes & Image

Quality projection samples are available at minimal or no cost.

Contact sales at

Items List

clear items